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[1]杨文彪,丁耀彬,唐和清*.微米级CuFe/CuFeO2的制备及其类Fenton催化性能[J].武汉工程大学学报,2017,39(02):147-152.[doi:10. 3969/j. issn. 1674?2869. 2017. 02. 008]
　YANG Wenbiao,DING Yaobin,TANG Heqing*.Fenton-Like Catalytic Activity of CuFe/CuFeO2 Micro-Composites Prepared from Treatment of CuFeO2 by NaBH4[J].Journal of Wuhan Institute of Technology,2017,39(02):147-152.[doi:10. 3969/j. issn. 1674?2869. 2017. 02. 008]
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微米级CuFe/CuFeO2的制备及其类Fenton催化性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年02期
页码:
147-152
栏目:
材料科学与工程
出版日期:
2017-05-04

文章信息/Info

Title:
Fenton-Like Catalytic Activity of CuFe/CuFeO2 Micro-Composites Prepared from Treatment of CuFeO2 by NaBH4
作者:
杨文彪; 丁耀彬; 唐和清*
中南民族大学资源与环境学院，湖北 武汉 430074
Author(s):
YANG Wenbiao;  DING Yaobin ; TANG Heqing*
College of Resources and Environmental Science， South-Central University for Nationalities， Wuhan 430074， China
关键词:
CuFe/CuFeO2; 硼氢化钠; Fenton; 降解
Keywords:
CuFe/CuFeO2;  NaBH4;  fenton;  degradation
分类号:
X703
DOI:
10. 3969/j. issn. 1674?2869. 2017. 02. 008
文献标志码:
A
摘要:
采用两步法，采用水热法以Fe（NO3）3 9H2O、Cu（NO3）25H2O作为前驱体，水为溶剂，正丙醛为还原剂，制备了CuFeO2微米颗粒. 为进一步提高其催化活化H2O2的性能，使用硼氢化钠对其进行了还原处理制备微米CuFe/CuFeO2催化剂. 利用XRD、SEM和XPS对其进行了物相，形貌和表面元素的表征，结果表明所制备的材料为Cu、Fe和CuFeO2的微米级复合物. 以罗丹明B （RhB） 为目标污染物，评价了其Fenton催化性能. 结果表明：在25 ℃，CuFe/CuFeO2催化剂用量为0.5 g/L，H2O2浓度为40 mmol/L，RhB浓度为10 μmol/L，初始pH=5.0时，CuFe/CuFeO2催化剂在30 min内可降解94.4%的RhB，表观速率常数是相同条件下未处理CuFeO2的11.6倍. 这说明CuFe和CuFeO2复合可明显增强其催化活化H2O2的能力.
Abstract:
CuFe/CuFeO2 micro-composites were prepared via a two-step route. CuFeO2 microparticles were first prepared through a modified hydrothermal method with Fe（NO3）39H2O and Cu（NO3）25H2O as precursors in the presence of distilled?water and propionaldehyde， and then CuFe/CuFeO2 micro-composites were obtained from the controllable reduction of the as-prepared CuFeO2 microparticles by NaBH4. The structure， morphology and surface element composition of CuFe/CuFeO2 micro-composites were characterized by X-ray diffraction， scanning electron microscopy and X-ray photoelectron spectroscopy. It was found that as-prepared products were a microscaled composite of Cu， Fe and CuFeO2. The Fenton-like catalytic activity of CuFe/CuFeO2 micro-composites was evaluated via the degradation of rhodamine B （RhB） as a model pollutant. It was found that 94.4% RhB （10 μmol/L） can be degraded in 30 min at initial pH 5.0 and concentration of 0.5 g/L CuFe/CuFeO2 and 40 mmol/L H2O2. The first-order reaction kinetic constant for the degradation of RhB by CuFe/CuFeO2 is 11.6 times that by CuFeO2. These results show that the H2O2-activating ability of CuFe/CuFeO2 significantly enhances by the composite of CuFe and CuFeO2.

参考文献/References:

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更新日期/Last Update: 2017-04-25